6.( 2014 东莞一模)       Switzerland (瑞士) is very small ,       it is the land of watch and it is very rich.

   A. Though; but   B. Because;so

   C. Because;/      D. Though;/

5.(2015 江苏镇江，8) —Does your school hold the raising of the national flag every Monday morning?

—Yes,       it rains heavily.

   A. if   B. since   C. because   D. unless

4.(2015 浙江温州，4) Mr. Smith has a habit of taking a shower       he has breakfast.

   A. though   B. before   C. because   D. since

3.(2015 内蒙古包头，32) We had to wait half an hour       we had already booked a table.

   A. or   B. once   C. although   D. as

2.(2015 广东湛江二模) We were swimming in the lake       suddenly the storm started.

   A. when   B. while   C. until   D. before

1.(2015 广东茂名—模) 一Would you like to come to dinner tonight?

—Fd like to,       I'm too busy.

   A. and   B. or   C. as   D. but

31.( 2011 山东青岛，20 ) Basketball has a history of nearly 300 years.Today it is still loved by       the young       the old.

   A. both... and...   B. either... or...

   C. not... but...     D. neither... nor...

30.( 2011 山东烟台，29 )       you have tried it on,you can’t imagine how pretty the new style skirt is.

   A. Because   B. Although   C. Unless   D. When

29.(2011 安徽宪湖，49) We can talk with friends on the Internet       it’s easier and cheaper.

   A. though   B. as   C. or   D. but

28.( 2011 四川自贡，31) He is getting fat,       he has decided to go to work on foot.

   A. so   B. though   C. and